From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Thu, 22 Sep 2016 01:18:57 +0000 (-0400)
Subject: libxc/tmem/restore: Remove call to XEN_SYSCTL_TMEM_OP_SAVE_GET_VERSION
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~216
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=f62c86e4977e7498e81211364440ec995253dd30;p=xen.git

libxc/tmem/restore: Remove call to XEN_SYSCTL_TMEM_OP_SAVE_GET_VERSION

The only thing this hypercall returns is TMEM_SPEC_VERSION.

The comment around is also misleading - this call does not
do any domain operation.

Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---

diff --git a/tools/libxc/xc_tmem.c b/tools/libxc/xc_tmem.c
index 4e5c278acb..31ae3f5b8d 100644
--- a/tools/libxc/xc_tmem.c
+++ b/tools/libxc/xc_tmem.c
@@ -381,16 +381,12 @@ static int xc_tmem_restore_new_pool(
 
 int xc_tmem_restore(xc_interface *xch, int dom, int io_fd)
 {
-    uint32_t save_version;
     uint32_t this_max_pools, this_version;
     uint32_t pool_id;
     uint32_t minusone;
     uint32_t weight, cap, flags;
     int checksum = 0;
 
-    save_version = xc_tmem_control(xch,0,XEN_SYSCTL_TMEM_OP_SAVE_GET_VERSION,dom,0,0,NULL);
-    if ( save_version == -1 )
-        return -1; /* domain doesn't exist */
     if ( read_exact(io_fd, &this_version, sizeof(this_version)) )
         return -1;
     if ( read_exact(io_fd, &this_max_pools, sizeof(this_max_pools)) )